Unique Academic Board Solutions for Exercise 1: Practice Exercise

The ratio between length and breadth of a rectangular park is $3:2$. If a man cycling along the boundary of the park at the speed of $12$ km/hr completes one round in $8$ minutes, then the area of the park is:

If the ratio of the area of two squares is $225:256$, then the ratio of their perimeter is:

If the area of a square is increased by $69\%$, then the side of the square increased by:

A tank is $25$ m long,$12$ m wide and $6$ m deep. The cost of plastering its walls and bottom at $75$ paise per sq.m is:

The base of a triangle is $15$ cm and height is $12$ cm. The height of another triangle of double the area having the base $20$ cm is:

The area of triangle is $216 {\text{cm}}^2$ and its sides are in the ratio $3:4:5$. The perimeter of the triangle is

If the side of an equilateral triangle is decreased by $20\%$ its area is decreased by:

The area of a rhombus is $150$ cm² The length of one of its diagonal is $10$ cm. The length of the other diagonal is: